儿

son

儿 is a noise that the Chinese, and especially the Beijing Chinese, like to put after certain words, making a slightly pirate-like "arrgh!" So, for example, 玩 (wan3) becomes 玩儿 (wan3 er5) which actually sounds more like "whaaa-er". It looks like "son", but this one is just used for the noise.
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greensea743